pp. 1059-1068
S&M3228 Research Paper of Special Issue https://doi.org/10.18494/SAM4040 Published: March 31, 2023 Enhancement of Microwave Dielectric Properties by Ti4+ Substitution at B-Site of Mg2SnO4 Ceramics for Temperature Sensor [PDF] Yih-Chien Chen, Chun-Hao Tai, and Rei-Shin Chen (Received February 26, 2022; Accepted December 12, 2022) Keywords: ceramics, electronic characterization, dielectric properties, temperature sensor
The microwave dielectric properties of Mg2(Sn1−xTix)O4 ceramics were examined with a view to their exploitation as a temperature sensor. Mg2(Sn1−xTix)O4 ceramics were prepared by the conventional solid-state method with various sintering temperatures. X-ray diffraction patterns of the Mg2(Sn0.97Ti0.03)O4 ceramic revealed no significant variation of the phase with the sintering temperature. An apparent density of 4.54 g/cm3, a dielectric constant (εr) of 8.3, quality factor (Q × f) of 75000 GHz, and a temperature coefficient of resonant frequency (τf) of −57 ppm/℃ were obtained for the Mg2(Sn0.97Ti0.03)O4 ceramic that was sintered at 1550 ℃ for 4 h. The development procedure and test results for a dielectric resonator antenna temperature sensor are also reported. The resonating frequency measured at 25 ℃ was 17.32 GHz and a sensitivity of −0.97 MHz/℃ was successfully achieved.
Corresponding author: Yih-Chien ChenThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yih-Chien Chen, Chun-Hao Tai, and Rei-Shin Chen, Enhancement of Microwave Dielectric Properties by Ti4+ Substitution at B-Site of Mg2SnO4 Ceramics for Temperature Sensor, Sens. Mater., Vol. 35, No. 3, 2023, p. 1059-1068. |